Overall after the traffic doing UP5 cleared up my upgrade went fine. All things are working fine, just a small annoyance in Evolution 3.4.3 now after upgrading I have black bars on the top of the folder tree, the top or highlighted message and the message header making it impossible to read as the text is also black there (links like mailto are in dark blue). I've looked all over and no answer, anybody else have this and how to fix? System specs are in my sig...

Just for kicks I installed mint-themes and changed over to the Mint-Z theme. Everything renders perfectly now, no more blackness in Evolution.

Another thing I was noticing before was that in some apps the dialog buttons did not pick up the theme, they showed up as blue when you highlighted or clicked them. All the buttons in everything are consistent now as well. Definitely a GTK2/GTK3 issue.